Which linear graph represents a proportional relationship? a graph of a line that passes through the points 0 comma negative 0.5 and 2 comma negative 1 a graph of a line that passes through the points 0 comma negative 4 and 1 comma negative 4 a graph of a line that passes through the points 0 comma 0 and 1 comma negative 4 a graph of a line that passes through the points 0 comma 2 and negative 1 comma negative 2